<html>

<head>
    <meta name=”viewport” content=”width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;” />
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, viewport-fit=cover">
    <script src="//cdn.bootcss.com/eruda/1.1.3/eruda.min.js"></script>
    <script>eruda.init();</script>
</head>

<body>
    <div>
        <div class="demo">
            点击链接<br /><br />
            <a class="j_open" href="javascript:void(0);">open</a><br />
            <a class="j_down" href="javascript:void(0);">down</a>
        </div>
    </div>
</body>

</html>